Hoeing-machine.



0. BONGARTZ.

BOEING MACHINE.

APPLICATION FILED KAB'.27,190B.

902,201. Patented Oct. 27, 1908 2 sums-sun z mzn/esses r [raven/Z0): 2 W raw 6,7 6,

rm: mums PETERS cn.. wAsmmzrmv, n. c

CARL BONGARTZ, OF MIELERSHOF, NEAR DIlLKEN, GERMANY.

HOE ING-MACHIN E Specification of Letters Patent.

Application filed March 27, 1908.

Patented Oct. 27, 1908.

Serial No. 423,528.

To all whom it may concern:

Be it known that I, CARL BONGARTZ, a citizen of Germany, residing at Mielershof, near Diilken, Germany, have invented new and useful Improvements in Hoeing-Machines, of which the following is a specification.

This invention relates to a hoeing machine provided with hoes arranged in sets, and so constructed that the distance between the sets themselves, as well as the distance between the members of each set, may be readily adjusted.

In the accompanying drawing Figure 1 is a side elevation, partly in section, of myimproved hoeing machine; Fig. 2 a plan of part thereof, Fig. 3 a detail of one of the sets of hoe-adjusting means showing the parts in a position different from Fig. 2, and Fig. 4 an enlarged perspective view of one of the sets of hoe-adjusting means.

A frame consisting of two longitudinal parallel bars 10 and 11 are connected by end pieces 18 which may be tilted on the axle 19 of the hoeing machine by means of an elbow lever 16 engaging the lower edge of bar 10. The angle to which the frame is set may be adjusted by a handle 15 cooperating with a rack 17, as will be readily understood.

Longitudinal bars 10 and 11 are connected at their centers by a fixed cross bar 4*, while at each side of the latter, there extends between bars 10 and 11, a cross bar 4 which is adjustable along the same to be set at various distances from bar 4. For this purpose bar 10 is made in the form of a rack having an upper flange 10*, and a lower flange 10 both flanges thus flanking the rack. The latter is adapted to be engaged by the toothed. front ends of bars 4, while a vertical displacement of the bars is prevented by flanges 10, 10 Bar 11 is provided with two series of perforations 26 to be connected by cotter pins to the apertured rear ends of bars 4. These pins, in conjunction with the toothed bar 10, hold cross bars 4 against lateral displacement, while a vertical disengagement of bars 4, from bar 11, is prevented by catches 12 pivoted thereto and projecting over the top of bar 11.

The bars 4*, 4, carry individual sets or gangs of hoes, each of said sets consisting of a front or central hoe and of a pair of flanking hoes arranged laterally to and back of the central hoe. As shown, there is secured to the forward end of bar 4*, the central hoe 1, while the flanking hoes 2 2, are attached to a pair of holders 9, hereinafter more fully described. In like manner the forward end of each bar 4 carries a central hoe l, the flanking hoes 2, being here also secured to a pair of holders 9. For supporting the latter, there is provided upon each bar 4*, 4, a slide 20 through which pass loosely the inner overlapping ends of holders 9. If desired, shears 3, may also be attached to holders 9, which shears are arranged preferably outside of hoes 2 2. a

Means are provided for overlapping holders 9 to a greater or less extent and thereby varying the distance between their hoes 2. These means consist of a pair of front toggle links 21 connecting the outer ends of holders 9 to the forward end of bar 4, and of rear toggle links 5 connecting the outer ends of such holders to a sleeve 7 slidable on bar 4. Thus it will be seen that by moving sleeves 7 backward or forward, the hoes 2 of each set will be made to simultaneously and uniformly approach or recede, the former position being shown in Fig. 3.

To links 5 may be secured harrowing teeth 14 adapted to gather the hoed material into rows.

In order to impart simultaneous backward or forward movement to the several sleeves 7 the latter are received within the hollow of an inverted U-shaped longitudinal bar 6 having arms 22 guided in eye 23 of bar 11. To bar 6 is secured a bracket 24 having threaded hub 25 which is engaged by a screw spindle 13 operable by handle 8.

It will be seen that by shifting bars 4, the outer sets or gangs of hoes 2 may be brought into greater or less proximity with the inner or central gang, while by manipulating handle 8, the distance between the hoes of each set may be varied. In this way the machine may be readily adjusted to conform to the particular requirements of the field under cultivation.

I claim:

1. A hoeing machine, comprising a frame, a series of sets of hoes carried thereby, each set consisting of a central hoe and a pair of flanking hoes, and means for simultaneously and uniformly adjusting the flanking hoes of each set with relation to its central hoe, substantially as specified.

2. A hoeing machine, comprising an inner set of hoes and two outer sets of hoes, each set being composed of a central hoe and a pair of flanking hoes, means for laterally I? cross bars, toggles connecting the h0ecartudinal bar engaged by the sleeves, and means for adjusting said bar, substantially as specified.

1 riers to the cross bars and sleeves, a longi- Signed by me at Dusseldorf this four: 15

teenth day of March 1908. CARL BONGARTZ. Witnesses:

PETER LIEBER, WILHELM FLASGI-IE. 

